A fluorophosphate-base laser glass having a low non-linear refractive index coefficient and a low liquid phase temperature and comprising a glass composed of 5 to 25% 1/2P2 O5 and the remainder of metal fluorides and 0.01 to 3% 1/2Nd2 O3 being incorporated into the glass, and more particularly a fluorophosphate-base laser glass comprising 5 to 25% 1/2P2 O5, 20 to 35% AlF3, 0 to 5% YF3, 22 to 55% BaF2 +SrF2 +CaF2 +MgF2, 0 to 25% NaF+LiF+KF and 0.01 to 3% 1/2Nd2 O3, all % being cationic %.
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4. A stable fluorophosphate-base laser glass having a non-linear refractive index coefficient of 0.5 to 0.7 × 10-13 e.s.u. and a liquid phase temperature of 550° to 750°C consisting essentially of 5 to 25% 1/2P2 O5, 20 to 35% AlF3, 0 to 5% YF3, 22 to 55% BaF2 + SrF2 + CaF2 + MgF2, 0 to 25% NaF+LiF+KF and 0.01 to 3% of at least one laser oscillation component selected from the group consisting of 1/2 Er2 O3, 1/2Eu2 O3 and 1/2Nd2 O3, said percentages being cationic %, said glass not containing any glass forming component which would adversely affect laser oscillation efficiency thereof.
7. A stable fluorphosphate-base laser glass having a non-linear refractive index coefficient of 0.5 to 0.7 × 10-13 e.s.u. and a liquid phase temperature of 550° to 750°C consisting essentially of 5 to 25% 1/2P2 O5, 20 to 35% AlF3, 0 to 5% YF3, 22 to 55% BaF2 +SrF2 +CaF2 +MgF2 with 2 to 12% BaF, 4 to 18% SrF2, 15 to 28% CaF2 and 0 to 5% MgF2, 0 to 25% NaF+LiF+KF and 0.01 to 3% of at least one laser oscillation component selected from the group consisting of 1/2 Er2 O3, 1/2 Eu2 O3 and 1/2Nd2 O3, said percentages being cationic %, said glass not containing any glass forming component which would adversely affect laser oscillation efficiency thereof.
1. A stable fluorophosphate-base laser glass having a non-linear refractive index coefficient of 0.5 to 0.7 × 10-13 e.s.u. and a liquid phase temperature of 550° to 750°C consisting essentially of 5 to 25% 1/2P2 O5 and the remainder being a mixture of fluorides of the metals Al, Ba, Sr and Ca, and 0 to 25% fluorides of Na, K and Li and 0 to 5% of each of the fluorides of Y, La and mg, and 0.01 to 3% of at least one laser oscillation component selected from the group consisting of 1/2 Er2 O3, 1/2 Eu2 O3 and 1/2Nd2 O3 incorporated into said glass, said percentages being cationic %, said glass not containing any glass forming component which would adversely affect laser oscillation efficiency thereof.
2. The fluorophosphate-base laser glass as claimed in
3. The fluorophosphate-base laser glass as claimed in
5. The fluorophosphate-base laser glass as claimed in
6. The fluorophosphate-base laser glass as claimed in
8. The fluorophosphate-base laser glass as claimed in
9. The fluorophosphate-base laser glass as claimed in
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1. Field of the Invention
The present invention relates to a fluorophosphate-base laser glass, and more particularly, it relates to an extremely stable fluorophosphate-base laser glass possessing a very low non-linear refractive index coefficient.
2. Description of the Prior Art
Heretofore, a silicate-base laser glass and a phosphate-base laser glass are known as laser glasses. Japanese patent application (OPI) No. 111,916/74 (corresponding to U.S. patent application Ser. No. 446,085 filed Feb. 26, 1974, now abandoned) discloses a silicate-base glass composed of an SiO2 -Al2 O3 -SrO-Li2 O-Na2 O system as a laser glass suitable for high speed and repeating oscillation. Further, Japanese patent application No. 613,795/74 discloses a phosphate-base laser glass composed of a P2 O5 -La2 O3 -Al2 O3 -RO system as a laser glass having far higher gain as compared with the conventional silicate-base glass.
Laser glasses for nuclear fusion have recently been required to have a high grain and also a low non-linear refractive index coefficient n2 (the refractive index coefficient proportional to the square of the intensity of the electric field applied to the laser). Japanese patent application No. 32,696/75, corresponding to U.S. patent application Ser. No. 667,756 filed Mar. 17, 1976, discloses a P2 O5 -Al2 O3 -La2 O3 -Y2 O3 -Na2 O-Li2 O series laser glass as a laser glass possessing a low non-linear refractive index coefficient and a high output.
However, the above-described phosphate glass still does not have a satisfactory non-linear refractive index coefficient n2 and laser glass must have a lower n2.
The refractive index n of a laser in a high electric field is shown by the equation
n = n0 + n2 E2
wherein n2 is the non-linear refractive index coefficient, E is the intensity of the applied electric field and n0 is the refractive index coefficient in a non-laser light (non-electric) field. If the non-linear refractive index coefficient is high, the refractive index becomes higher when the laser light passes through the glass whereby self-focusing of the laser glass occurs breaking the laser glass, and, as a result, it is difficult to exhibit high output sufficiently.
As a result of extensive investigations in order to obtain a laser glass possessing a lower non-linear refractive index coefficient n2 than that of the conventional phosphate laser glass and which is stable as a glass itself, it has now been found that in order to obtain such a glass, it is necessary to reduce the phosphate content in the glass to as low as possible and the reduction of the phosphate content can be made by substituting the glass modifiers with fluorides, and the present invention has been achieved.
An object of the present invention is to provide a stable fluorophosphate-base laser glass having a lower non-linear refractive index coefficient.
Another object of the present invention is to provide a fluorophosphate-base laser glass comprising a glass comprising 5 to 25% 1/2P2 O5 and the remainder of metal fluorides and 0.01 to 3% 1/2Nd2 O3, all % being cationic %.
Representative examples of the metal fluorides which can be used in the present invention include those of Al, Y, Ba, Sr, Ca, Mg, Na, K, Li and La. Specific examples of metal fluorides which can be used in the present invention include AlF3, YF3, BaF2, SrF2, CaF2, MgF2, NaF, KF, LiF and LaF3.
A laser glass containing 5 to 25 cationic % 1/2P2 O5 has a sufficiently low non-linear refractive index coefficient n2 and is a desirable glass as a laser glass for nuclear fusion from a performance standpoint. However, since the glass forming oxide (P2 O5) content is very small, the stability as a glass is poor. In general, laser glasses for nuclear fusion must be a large-sized mass of glass. In veiw of this, there is further provided a fluorophosphate-base laser glass comprising 5 to 25% 1/2P2 O5, 20 to 35% AlF3, 0 to 5% YF3, 22 to 55% BaF2 +SrF2 +CaF2 +MgF2, 0 to 25% NaF+KF+LiF and 0.01 to 3% 1/2Nd2 O3, all % being cationic %.
Each component of the laser glass of the present invention and the amount thereof are described in detail below.
If the amount of 1/2P2 O5 is lower than 5 cationic %, glassification does not occur, while if the amount of 1/2P2 O5 is higher than 25 cationic %, the non-linear refractive index coefficient n2 increases.
The amount of AlF3 preferably ranges from 20 to 35 cationic % in order to decrease the liquid phase temperature.
YF3 is an effective component to stabilize the glass, and if the amount of YF3 exceeds 5 cationic %, the effect disappears. A preferred amount of YF3 is 0.1 to 4 cationic %.
The total amount of BaF2, SrF2, CaF2 and MgF2 is preferably 22 to 55 cationic % in order to also obtain a sufficiently stable glass.
Each of NaF, KF and LiF is an effective component to stabilize the glass and to reduce the non-linear refractive index coefficient n2. If the total amount of NaF, KF and LiF exceeds 25 cationic %, the chemical resistance of the glass deteriorates.
LaF3 is an optional component and does not have any specific function. LaF3 may be generally used in an amount up to 5 cationic %.
If the amount of 1/2Nd2 O3 is lower than 0.01 cationic %, it becomes difficult to oscillate the laser glass at these low amounts, while if the amount of 1/2Nd2 O3 is higher than 3 cationic %, the liquid phase temperature is increased and also density quenching of fluorescence occurs.
In order to obtain a large-sized mass of glass, it is necessary to decrease the liquid phase temperature to as low as possible. In order to achieve this, limiting the amount of each of BaF2, SrF2, CaF2 and MgF2 to a specific amount is very effective. That is, the amount of BaF2 preferably ranges from 2 to 12 cationic %, the amount of SrF2 preferably ranges from 4 to 18 cationic %, the amount of CaF2 preferably ranges from 15 to 28% and the amount of MgF2 preferably ranges from 0 to 5%.
Of the alkali metal fluorides, NaF is particularly preferred to decrease the liquid phase temperature and the non-linear refractive index coefficient.
The presence of MoO3, TiO2, 1/2Nb2 O5 and the like is effective in preventing solarization. Each of these components can be used in an amount up to 2 cationic %, but the total amount thereof must range from 0.1 to 4 cationic %.
Moreover, according to another embodiment of the present invention, 1/2Nd2 O3 may be partially or completely replaced by 1/2Er2 O3 and/or 1/2Eu2 O3 as a laser oscillation component. In addition, AlF3, YF3, LaF3, NaF, KF, LiF, BaF2, SrF2, CaF2 and MgF2 can be partially or completely used in the form of the phosphates or the phosphites, such as AlPO4, YPO4, LaPO4, NaPO3, KPO3, K3 PO4, Li3 PO4, Sr(PO3)2, Ca3 (PO4)2, Ca(PO3)2, Mg2 P2 O7, Ba(PO3)2, etc. Further, the Nd2 O3, Er2 O3 and Eu2 O3 can be effectively added as the fluorides thereof, such as NdF3, ErF3 and EuF3 respectively.
The laser glasses accordig to the present invention have a non-linear refractive index coefficient of 0.5 to 0.7×10-13 e.s.u. and a liquid phase temperature of 550° to 750°C
Examples of laser glasses of the present invention are shown in the Table below to explain the invention in greater detail. In the Table, each component is shown in terms of cationic %, LT is the liquid phase temperature (in °C) which is a measure of the stability of the glass to devitrification, and n2 is the non-linear refractive index coefficient (×10-13 e.s.u.).
The abbreviation "e.s.u." means electrostatic unit.
| Table |
| __________________________________________________________________________ |
| No. 1 2 3 4 5 6 7 8 9 10 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 18 18 18 13 18 18 18 18 18 18 |
| M 9.95 |
| 9.96 |
| 9.96 |
| 6.45 |
| 10.16 |
| 9.93 |
| 10.16 |
| 9.96 |
| 9.96 |
| 9.96 |
| W 14.68 |
| 15.52 |
| 14.87 |
| 9.56 |
| 13.49 |
| 14.03 |
| 13.78 |
| 14.87 |
| 14.38 |
| 14.43 |
| AlF3 |
| C 31.72 |
| 31.72 |
| 31.72 |
| 31.72 |
| 31.72 |
| 31.72 |
| 31.72 |
| 34.98 |
| 29.98 |
| 30.98 |
| M 35.06 |
| 35.09 |
| 35.09 |
| 33.93 |
| 35.81 |
| 35.06 |
| 35.81 |
| 38.69 |
| 33.17 |
| 34.27 |
| W 30.62 |
| 32.37 |
| 31.00 |
| 27.60 |
| 28.13 |
| 29.25 |
| 28.73 |
| 34.20 |
| 28.29 |
| 27.39 |
| YF3 |
| C 3.26 |
| 4.26 |
| 3.26 |
| 0.26 |
| -- 3.26 |
| 3.61 |
| -- 5 3 |
| M 3.61 |
| 4.71 |
| 3.61 |
| 0.28 |
| -- 3.61 |
| -- -- 5.53 |
| 3.32 |
| W 5.47 |
| 7.55 |
| 5.54 |
| 0.39 |
| -- 5.22 -- 8.22 |
| 4.94 |
| LaF3 |
| C -- 1 -- -- -- -- -- -- -- -- |
| M -- 1.11 |
| -- -- -- -- -- -- -- -- |
| W -- 2.38 |
| -- -- -- -- -- -- -- -- |
| 1/2Al2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Y2 O3 |
| C -- -- -- -- 3.26 |
| -- 3.26 |
| -- -- -- |
| M -- -- -- -- 1.84 |
| -- 1.84 |
| -- -- -- |
| W -- -- -- -- 3.89 |
| -- 3.97 |
| -- -- -- |
| 1/2La2 O3 |
| C -- -- -- -- -- -- -- -- -- 1 |
| M 1.4 |
| W -- -- -- -- -- -- -- -- -- 1.84 |
| BaF2 |
| C 5.76 |
| 2.76 |
| 5.76 |
| 9 8.6 7.46 |
| 8.03 |
| 6.33 |
| 6.33 |
| 6.33 |
| M 6.36 |
| 3.05 |
| 6.37 |
| 9.63 |
| 9.71 |
| 8.25 |
| 9.07 |
| 7.00 |
| 7.00 |
| 7.00 |
| W 11.61 |
| 5.88 |
| 11.75 |
| 16.35 |
| 15.92 |
| 14.36 |
| 15.18 |
| 12.92 |
| 12.49 |
| 12.54 |
| SrF2 |
| C 7.38 |
| 4.38 |
| 7.38 |
| 18 11.02 |
| 9.57 |
| 10.29 |
| 8.11 |
| 8.11 |
| 8.11 |
| M 18.15 |
| 4.85 |
| 8.16 |
| 19.25 |
| 12.44 |
| 10.59 |
| 11.62 |
| 8.97 |
| 8.97 |
| 8.97 |
| W 10.66 |
| 6.69 |
| 10.79 |
| 23.42 |
| 14.02 |
| 13.20 |
| 13.94 |
| 11.86 |
| 11.45 |
| 11.51 |
| CaF2 |
| C 17.28 |
| 15.28 |
| 17.28 |
| 28 25.8 |
| 22.39 |
| 24.10 |
| 18.98 |
| 18.98 |
| 18.95 |
| M 19.09 |
| 16.90 |
| 19.12 |
| 29.95 |
| 29.13 |
| 24.77 |
| 27.21 |
| 21.00 |
| 21.00 |
| 21.00 |
| W 15.51 |
| 14.50 |
| 15.70 |
| 22.64 |
| 21.27 |
| 19.20 |
| 20.29 |
| 17.25 |
| 16.65 |
| 16.74 |
| MgF2 |
| C 5 -- -- -- -- -- -- -- -- -- |
| M 5.52 |
| W 3.58 |
| BaO -- -- -- -- -- -- -- -- -- -- |
| SrO -- -- -- -- -- -- -- -- -- -- |
| CaO -- -- -- -- -- -- -- -- -- -- |
| MgO -- -- -- -- -- -- -- -- -- -- |
| KF -- -- -- -- -- -- -- -- -- -- |
| NaF C 10 20 15 -- -- 1 3 12 12 12 |
| M 11.05 |
| 22.12 |
| 16.59 1.11 |
| 3.39 |
| 13.27 |
| 13.27 |
| 13.27 |
| W 9.83 |
| 10.21 |
| 7.33 |
| -- -- 0.46 |
| 1.36 |
| 5.87 |
| 5.60 |
| 5.69 |
| LiF -- -- -- -- -- 5 -- -- -- -- |
| 5.53 |
| 1.42 |
| 1/2K2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Na2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Li2 O |
| -- -- -- -- -- -- -- -- -- -- |
| MoO3 |
| C 0.4 1.4 0.4 -- -- 0.4 -- 0.4 0.4 0.4 |
| M 0.44 |
| 1.55 |
| 0.44 |
| -- -- 0.49 |
| -- 0.44 |
| 0.44 |
| 0.44 |
| W 0.66 |
| 2.45 |
| 0.67 |
| -- -- 0.63 |
| -- 0.67 |
| 0.65 |
| 0.64 |
| TiO2 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Nb2 O5 |
| C -- -- -- -- 0.4 -- 0.4 -- -- -- |
| M -- -- -- -- 0.23 0.23 |
| W -- -- -- -- 0.56 |
| -- 0.57 |
| -- -- -- |
| NdF3 |
| C 0.2 -- -- -- -- -- -- -- -- -- |
| M 0.22 |
| W 0.46 |
| -- -- -- -- -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1 1.2 1.2 0.02 |
| 1.2 1.2 1.2 1.2 1.2 1.2 |
| M 0.55 |
| 0.66 |
| 0.66 |
| 0.01 |
| 0.68 |
| 0.66 |
| 0.68 |
| 0.66 |
| 0.66 |
| 0.66 |
| W 1.92 |
| 2.45 |
| 2.35 |
| 0.03 |
| 2.02 |
| 2.23 |
| 2.18 |
| 2.36 |
| 2.27 |
| 2.28 |
| LT 620 652 631 674 650 621 645 673 665 633 |
| n2 0.65 |
| 0.62 |
| 0.66 |
| 0.70 |
| 0.69 |
| 0.65 |
| 0.68 |
| 0.60 |
| 0.67 |
| 0.63 |
| No. 11 12 13 14 15 16 17 18 19 20 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 18 18 18 18 18 5 19.2 |
| 25 15.18 |
| 20 |
| M 10.23 |
| 10.18 |
| 10.00 |
| 9.87 |
| 10.00 |
| 7.56 |
| 10.02 |
| 14.71 |
| 8.31 |
| 11.22 |
| W 14.68 |
| 14.65 |
| 14.71 |
| 14.64 |
| 14.82 |
| 3.84 |
| 11.29 |
| 22.55 |
| 12.33 |
| 12.12 |
| AlF3 |
| C 29.98 |
| 30.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| 34.5 |
| 20.5 |
| 20.5 |
| 31.72 |
| 31.72 |
| M 34.11 |
| 35.06 |
| 36.66 |
| 30.24 |
| 36.66 |
| 35.39 |
| 22.69 |
| 24.12 |
| 34.76 |
| 35.59 |
| W 28.92 |
| 29.89 |
| 31.88 |
| 31.74 |
| 32.13 |
| 30.36 |
| 20.60 |
| 21.85 |
| 30.48 |
| 30.26 |
| YF3 |
| C -- -- -- 2 -- 2 -- 2 2 2 |
| M -- -- -- 2.20 |
| -- 2.05 |
| -- 2.35 |
| 2.19 |
| 2.24 |
| W -- -- -- 3.34 |
| -- 3.16 |
| -- 3.71 |
| 3.34 |
| 3.31 |
| LaF3 |
| C -- -- -- -- -- 3.2 -- -- -- -- |
| M -- -- -- -- -- 3.28 |
| -- -- -- -- |
| W -- -- -- -- -- 6.70 |
| -- -- -- -- |
| 1/2Al2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Y2 O3 |
| C 5 4 2 -- 2 -- -- -- -- -- |
| M 2.84 |
| 2.26 |
| 1.11 |
| -- 1.11 |
| -- -- -- -- -- |
| W 6.49 |
| 5.19 |
| 2.60 |
| -- 2.62 |
| -- -- -- -- -- |
| 1/2La2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| BaF2 |
| C 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.44 |
| 6.44 |
| 4.40 |
| 6.44 |
| 6.44 |
| M 7.20 |
| 7.16 |
| 7.03 |
| 6.96 |
| 7.03 |
| 6.01 |
| 71.2 |
| 5.15 |
| 7.05 |
| 7.22 |
| W 12.76 |
| 12.75 |
| 12.78 |
| 12.72 |
| 12.87 |
| 13.30 |
| 13.50 |
| 9.80 |
| 12.92 |
| 12.83 |
| SrF2 |
| C 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.21 |
| 8.21 |
| 6.25 |
| 8.21 |
| 8.21 |
| M 7.23 |
| 9.17 |
| 9.01 |
| 8.91 |
| 9.01 |
| 8.42 |
| 9.08 |
| 7.35 |
| 8.99 |
| 9.21 |
| W 11.71 |
| 11.70 |
| 11.73 |
| 11.67 |
| 11.82 |
| 11.16 |
| 12.33 |
| 9.98 |
| 11.80 |
| 11.72 |
| CaF2 |
| C 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 19.05 |
| 19.05 |
| 15.25 |
| 19.05 |
| 19.05 |
| M 21.59 |
| 21.47 |
| 21.09 |
| 20.86 |
| 21.09 |
| 19.54 |
| 21.07 |
| 17.94 |
| 20.80 |
| 21.37 |
| W 17.03 |
| 17.02 |
| 17.06 |
| 16.78 |
| 17.19 |
| 16.10 |
| 17.78 |
| 15.13 |
| 17.02 |
| 16.90 |
| MgF2 |
| -- -- -- -- -- -- -- -- -- -- |
| BaO -- -- -- -- -- -- -- -- -- -- |
| SrO -- -- -- -- -- -- -- -- -- -- |
| CaO -- -- -- -- -- -- -- -- -- -- |
| MgO -- -- -- -- -- -- -- -- -- -- |
| KF C -- -- -- -- -- 20 20 5 2 1 |
| M -- -- -- -- -- 20.51 |
| 22.12 |
| 5.88 |
| 2.19 |
| 1.12 |
| W -- -- -- -- -- 12.58 |
| 13.89 |
| 3.69 |
| 1.33 |
| 0.66 |
| NaF C 10 12 12 12 12 -- 5 15 10 6.67 |
| M 11.38 |
| 13.57 |
| 13.33 |
| 13.19 |
| 13.33 |
| -- 5.53 |
| 17.65 |
| 10.95 |
| 7.48 |
| W 4.83 |
| 5.79 |
| 5.80 |
| 5.77 |
| 5.84 |
| -- 2.51 |
| 8.00 |
| 8.00 |
| 3.18 |
| LiF 2 -- -- -- -- -- -- -- -- -- |
| 1/2K2 O |
| C -- -- -- -- -- -- -- -- -- 1.71 |
| M -- -- -- -- -- -- -- -- -- 0.96 |
| W -- -- -- -- -- -- -- -- -- 0.91 |
| 1/2NaNa2 O |
| C -- -- -- -- -- -- -- 5 -- -- |
| M -- -- -- -- -- -- -- 2.94 |
| -- -- |
| W -- -- -- -- -- -- -- 1.97 |
| -- -- |
| 1/2Li2 O |
| C -- -- -- -- -- -- -- -- 2.2 -- |
| M -- -- -- -- -- -- -- -- 1.20 |
| -- |
| W -- -- -- -- -- -- -- -- 0.38 |
| -- |
| MoO3 |
| C 0.4 0.4 0.4 -- -- 0.4 0.4 0.4 2 -- |
| M 0.46 |
| 0.45 |
| 0.44 |
| -- -- 0.41 |
| 0.44 |
| 0.47 |
| 2.19 |
| -- |
| W 0.66 |
| 0.66 |
| 0.66 |
| -- -- 0.62 |
| 0.69 |
| 0.73 |
| 3.29 |
| -- |
| TiO2 |
| C -- -- -- 0.4 0.4 -- -- -- -- 2 |
| M -- -- -- 0.44 |
| 0.44 |
| -- -- -- -- 2.24 |
| W -- -- -- 0.39 |
| 0.37 |
| -- -- -- -- 1.82 |
| 1/2Nb2 O5 |
| -- -- -- -- -- -- -- -- -- -- |
| NdF3 |
| C -- -- 1.2 1.2 -- -- -- -- -- -- |
| M -- -- 1.33 |
| 1.32 |
| -- -- -- -- -- -- |
| W -- -- 2.78 |
| 2.77 |
| -- -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1.2 1.2 -- -- 1.2 1.2 1.2 1.2 1.2 1.2 |
| M 0.68 |
| 0.68 |
| -- -- 1.33 |
| 1.23 |
| 1.33 |
| 1.41 |
| 1.31 |
| 1.35 |
| W 2.32 |
| 2.32 |
| -- -- 2.34 |
| 3.18 |
| 2.41 |
| 2.56 |
| 2.31 |
| 2.29 |
| LT 653 641 659 643 658 903 682 700 620 615 |
| n2 0.70 |
| 0.69 |
| 0.67 |
| 0.64 |
| 0.67 |
| 0.54 |
| 0.61 |
| 0.78 |
| 0.60 |
| 0.66 |
| No. 21 22 23 24 25 26 27 28 29 30 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 20 20 20 20 19 19 20 20 18 18 |
| M 11.31 |
| 11.47 |
| 11.17 |
| 10.20 |
| 10.50 |
| 10.67 |
| 11.50 |
| 11.86 |
| 10.68 |
| 9.96 |
| W 16.59 |
| 16.72 |
| 16.06 |
| 16.02 |
| 14.85 |
| 15.02 |
| 15.78 |
| 17.18 |
| 14.81 |
| 14.71 |
| AlF3 |
| C 31.72 |
| 24.5 |
| 29.5 |
| 29.48 |
| 29.48 |
| 29.48 |
| 24.5 |
| 21.72 |
| 31.72 |
| 31.72 |
| M 35.88 |
| 28.13 |
| 32.97 |
| 33.03 |
| 32.58 |
| 33.13 |
| 28.19 |
| 25.73 |
| 37.65 |
| 35.10 |
| W 31.14 |
| 24.24 |
| 28.03 |
| 27.94 |
| 27.29 |
| 27.60 |
| 23.17 |
| 22.07 |
| 30.88 |
| 30.68 |
| YF3 |
| C 2 -- 2 1.38 |
| -- -- -- -- 2 2 |
| M 2.26 |
| -- 2.23 |
| 1.55 |
| -- -- -- -- 2.37 |
| 2.21 |
| W 3.41 |
| -- 3.30 |
| 2.27 |
| -- -- -- -- 3.38 |
| 3.36 |
| LaF3 |
| C -- -- -- -- 5 2 -- -- -- -- |
| M -- -- -- 5.52 |
| 2.25 |
| -- -- -- -- -- |
| W -- -- -- 10.80 |
| 4.37 |
| -- -- -- -- -- |
| 1/2A12 O3 |
| C -- 5 -- -- -- -- -- 10 -- -- |
| M -- 2.87 |
| -- -- -- -- -- 5.92 |
| -- -- |
| W -- 3.00 |
| -- -- -- -- -- 6.17 |
| -- -- |
| 1/2Y 2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2La2 O3 |
| C -- -- -- -- -- -- 5 -- -- -- |
| M -- -- -- -- -- -- 2.88 |
| -- -- -- |
| W -- -- -- -- -- -- 9.17 |
| -- -- -- |
| BaF2 |
| C 3.72 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| 6.44 |
| M 9.21 |
| 7.39 |
| 7.20 |
| 7.22 |
| 7.12 |
| 7.24 |
| 7.41 |
| 7.63 |
| 7.64 |
| 7.12 |
| W 7.02 |
| 13.30 |
| 12.77 |
| 12.74 |
| 12.45 |
| 12.59 |
| 12.71 |
| 13.66 |
| 13.09 |
| 13.00 |
| SrF2 |
| C 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| 8.21 |
| M 9.29 |
| 9.42 |
| 9.17 |
| 9.20 |
| 9.07 |
| 9.22 |
| 9.45 |
| 9.73 |
| 9.74 |
| 9.08 |
| W 12.05 |
| 12.15 |
| 11.66 |
| 11.64 |
| 11.37 |
| 11.50 |
| 11.61 |
| 12.48 |
| 11.96 |
| 11.88 |
| CaF2 |
| C 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| 19.05 |
| M 21.55 |
| 21.86 |
| 21.28 |
| 21.34 |
| 21.05 |
| 21.40 |
| 21.92 |
| 22.57 |
| 22.61 |
| 21.07 |
| W 17.39 |
| 17.53 |
| 16.82 |
| 16.78 |
| 16.39 |
| 16.58 |
| 16.75 |
| 18.00 |
| 17.24 |
| 17.13 |
| MgF2 |
| -- -- -- -- -- -- -- -- -- -- |
| BaO C -- -- -- -- -- -- -- -- 0.68 |
| -- |
| M -- -- -- -- -- -- -- -- 0.81 |
| -- |
| W -- -- -- -- -- -- -- -- 1.21 |
| -- |
| SrO C -- -- -- -- -- -- -- 0.94 |
| -- -- |
| M -- -- -- -- -- -- -- 1.11 |
| -- -- |
| W -- -- -- -- -- -- -- 1.18 |
| -- -- |
| CaO C -- -- -- -- -- -- 3.16 |
| -- -- -- |
| M -- -- -- -- -- -- 3.64 |
| -- -- -- |
| W -- -- -- -- -- -- 2.00 |
| -- -- -- |
| MgO C -- -- -- -- -- -- -- -- -- 0.94 |
| M -- -- -- -- -- -- -- -- -- 1.04 |
| W -- -- -- -- -- -- -- -- -- 0.44 |
| KF C 2.1 2.1 -- -- -- -- -- -- -- -- |
| M 2.38 |
| 2.41 |
| W 1.43 |
| 1.44 |
| C 10 10 12.04 |
| 12.04 |
| 12.01 |
| 7.8 12.04 |
| 12.04 |
| -- 12.04 |
| M 11.31 |
| 11.47 |
| 13.45 |
| 13.49 |
| 13.27 |
| 8.76 |
| 13.86 |
| 14.27 13.32 |
| W 4.91 |
| 4.95 |
| 5.72 |
| 5.70 |
| 5.56 |
| 3.65 |
| 5.69 |
| 6.12 5.82 |
| LiF -- -- -- -- -- -- -- -- -- -- |
| 1/2K2 O |
| C -- -- -- -- -- 4.62 |
| M 5.19 |
| W 2.43 |
| 1/2Na2 O |
| -- -- -- -- -- -- -- -- 12.3 |
| 7.33 |
| 4.92 |
| 1/2Li2 O |
| -- -- -- -- -- -- -- -- -- -- |
| MoO3 |
| C -- 2 0.4 0.4 0.8 0.4 0.4 0.4 0.4 0.4 |
| M -- 2.29 |
| 0.45 |
| 0.45 |
| 0.88 |
| 0.45 |
| 0.46 |
| 0.47 |
| 0.47 |
| 0.44 |
| W -- 3.39 |
| 0.15 |
| 0.65 |
| 1.27 |
| 0.64 |
| 0.65 |
| 0.70 |
| 0.67 |
| 0.66 |
| TiO2 |
| C -- 2 -- -- -- -- -- -- -- -- |
| M -- 2.29 |
| W -- 1.89 |
| 1/2Nb2 O5 |
| C 2 -- -- -- -- -- -- -- -- -- |
| M 1.13 |
| -- -- -- -- -- -- -- -- -- |
| W 3.10 |
| -- -- -- -- -- -- -- -- -- |
| NdF3 |
| C -- -- 1.36 |
| 1.5 0.05 |
| -- -- -- -- -- |
| M -- -- 1.52 |
| 1.68 |
| 0.01 |
| W -- -- 3.10 |
| 3.41 |
| 0.02 |
| -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1.2 0.7 1 1.5 -- 3 1.2 1.2 1.2 1.2 |
| M 0.68 |
| 0.40 |
| 0.56 |
| 0.84 |
| -- 1.69 |
| 0.69 |
| 0.71 |
| 0.7 0.66 |
| W 2.36 |
| 1.39 |
| 1.90 |
| 2.85 |
| -- 5.62 |
| 2.27 |
| 2.44 |
| 2.34 |
| 2.32 |
| LT 630 760 631 637 687 710 820 835 755 629 |
| n2 0.67 |
| 0.68 |
| 0.66 |
| 0.66 |
| 0.72 |
| 0.69 |
| 0.75 |
| 0.73 |
| 0.69 |
| 0.64 |
| No. 31 32 33 34 35 36 37 38 39 40 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 18 18 18 18 18 18 18 18 18 18 |
| M 9.9 9.9 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| W 14.73 |
| 14.66 |
| 14.70 |
| 14.66 |
| 14.74 |
| 14.79 |
| 14.69 |
| 15.02 |
| 14.91 |
| 14.80 |
| AlF3 |
| C 32.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| 30.98 |
| 29.98 |
| 28.98 |
| 30.98 |
| 29.48 |
| 28.48 |
| M 36.48 |
| 36.56 |
| 36.48 |
| 36.98 |
| 34.27 |
| 33.16 |
| 32.06 |
| 34.27 |
| 32.61 |
| 31.50 |
| W 31.94 |
| 31.80 |
| 31.88 |
| 31.79 |
| 30.01 |
| 27.31 |
| 28.91 |
| 30.61 |
| 28.89 |
| 27.70 |
| YF3 |
| C 2 2 2 2 2 2 2 -- 1.5 2.5 |
| M 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| -- 1.66 |
| 2.77 |
| W 3.36 |
| 3.35 |
| 3.36 |
| 3.95 |
| 3.37 |
| 3.37 |
| 3.35 |
| -- 2.55 |
| 4.23 |
| LaF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Al2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Y2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2La2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| BaF2 |
| C 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| M 7.00 |
| 7.02 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| W 12.80 |
| 12.75 |
| 12.78 |
| 12.74 |
| 12.80 |
| 12.83 |
| 12.74 |
| 13.05 |
| 12.95 |
| 12.86 |
| SrF2 |
| C 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| M 8.97 |
| 8.99 |
| 8.97 |
| 8.97 |
| 8.97 |
| 8.97 |
| 8.97 |
| 8.97 |
| 8.97 |
| 8.97 |
| W 11.75 |
| 11.70 |
| 11.73 |
| 11.69 |
| 11.75 |
| 11.78 |
| 11.70 |
| 11.98 |
| 11.89 |
| 11.80 |
| CaF2 |
| W 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| M 21.00 |
| 21.04 |
| 21.00 |
| 21.00 |
| 21.00 |
| 21.00 |
| 21.00 |
| 21.00 |
| 21.00 |
| 21.00 |
| W 17.09 |
| 17.02 |
| 17.06 |
| 17.01 |
| 17.09 |
| 17.14 |
| 17.01 |
| 17.43 |
| 17.29 |
| 17.17 |
| MgF2 |
| C -- -- -- -- 2 3 4 4 4 4 |
| M -- -- -- -- 2.21 |
| 3.32 |
| 4.42 |
| 4.42 |
| 4.42 |
| 4.42 |
| W -- -- -- -- 1.44 |
| 1.95 |
| 2.86 |
| 2.93 |
| 2.91 |
| 2.89 |
| BaO -- -- -- -- -- -- -- -- -- -- |
| SrO -- -- -- -- -- -- -- -- -- -- |
| CaO -- -- -- -- -- -- -- -- -- -- |
| MgO -- -- -- -- -- -- -- -- -- -- |
| KF -- -- -- -- -- -- -- -- -- -- |
| NAF C 12.4 |
| 12 12 12 12 12 12 12 12 12 |
| M 13.72 |
| 13.30 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| W 6.00 |
| 5.79 |
| 5.80 |
| 5.78 |
| 5.81 |
| 5.83 |
| 5.78 |
| 5.93 |
| 5.88 |
| 5.84 |
| LiF -- -- -- -- -- -- -- -- -- -- |
| 1/2K2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2K2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Li2 O |
| -- -- -- -- -- -- -- -- -- -- |
| MoO3 |
| C -- -- -- 0.4 0.4 0.4 0.4 0.4 -- -- |
| M -- -- -- 0.45 |
| 0.45 |
| 0.45 |
| 0.45 |
| 0.45 |
| -- -- |
| W -- -- -- 0.66 |
| 0.66 |
| 0.67 |
| 0.66 |
| 0.68 |
| -- -- |
| TiO2 |
| C -- -- 0.44 |
| -- -- -- -- -- 0.4 0.4 |
| M -- -- 0.45 |
| -- -- -- -- -- 0.45 |
| 0.45 |
| W -- -- 0.37 |
| -- -- -- -- -- 0.37 |
| 0.37 |
| 1/2Nb2 O5 |
| C -- 0.4 -- -- -- -- -- -- -- -- |
| M -- 0.22 |
| -- -- -- -- -- -- -- -- |
| W -- 0.61 |
| -- -- -- -- -- -- -- -- |
| NdF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 |
| M 0.66 |
| 0.69 |
| 0.66 |
| 0.66 |
| 0.66 |
| 0.66 |
| 0.66 |
| 0.66 |
| 0.66 |
| 0.66 |
| W 2.33 |
| 2.32 |
| 2.32 |
| 2.32 |
| 2.33 |
| 2.33 |
| 2.32 |
| 2.37 |
| 2.36 |
| 2.34 |
| LT 600 632 610 605 600 597 580 621 592 602 |
| n2 0.63 |
| 0.66 |
| 0.65 |
| 0.67 |
| 0.65 |
| 0.64 |
| 0.63 |
| 0.62 |
| 0.63 |
| 0.64 |
| No. 41 42 43 44 45 46 47 48 49 50 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 18 18 18 18 18 18 18 18 18 18 |
| M 9.96 |
| 9.96 |
| 9.96 |
| 9.98 |
| 10.00 |
| 9.98 |
| 9.98 |
| 9.98 |
| 9.98 |
| 10.00 |
| W 14.75 |
| 14.65 |
| 14.34 |
| 14.47 |
| 14.59 |
| 14.78 |
| 14.48 |
| 14.64 |
| 14.86 |
| 14.19 |
| AlF3 |
| C 27.98 |
| 27.48 |
| 27.48 |
| 27.48 |
| 27.48 |
| 28.48 |
| 28.48 |
| 28.48 |
| 28.48 |
| 28.48 |
| M 30.95 |
| 30.40 |
| 30.40 |
| 30.46 |
| 30.54 |
| 31.59 |
| 31.59 |
| 31.59 |
| 31.59 |
| 31.66 |
| W 27.12 |
| 26.47 |
| 25.89 |
| 26.01 |
| 26.36 |
| 27.68 |
| 27.10 |
| 27.42 |
| 27.65 |
| 26.58 |
| YF3 |
| C 3 3.5 3.5 3.5 3.0 2 2 2 2 2 |
| M 3.32 |
| 3.87 |
| 3.87 |
| 3.88 |
| 3.34 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.23 |
| W 5.05 |
| 5.86 |
| 5.93 |
| 5.89 |
| 5.00 |
| 3.38 |
| 3.30 |
| 3.34 |
| 3.38 |
| 3.24 |
| LaF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Al2 O3 |
| C -- -- -- -- -- 0.5 0.5 0.5 0.5 0.5 |
| M -- -- -- -- -- 0.28 |
| 0.28 |
| 0.28 |
| 0.28 |
| 0.28 |
| W -- -- -- -- -- 0.29 |
| 0.29 |
| 0.29 |
| 0.30 |
| 0.28 |
| 1/2Y2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2La2 O3 |
| -- -- -- -- 0.5 -- -- -- -- -- |
| 0.28 |
| 0.90 |
| BaF2 |
| C 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| M 7.00 |
| 7.00 |
| 7.00 |
| 7.02 |
| 7.04 |
| 7.02 |
| 7.02 |
| 7.02 |
| 7.02 |
| 7.04 |
| W 12.81 |
| 12.73 |
| 12.45 |
| 12.80 |
| 12.68 |
| 12.84 |
| 12.58 |
| 12.72 |
| 12.86 |
| 12.33 |
| SrF2 |
| C 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| M 8.97 |
| 8.97 |
| 8.97 |
| 8.99 |
| 9.02 |
| 9.00 |
| 9.00 |
| 9.00 |
| 9.00 |
| 9.02 |
| W 11.76 |
| 11.68 |
| 11.43 |
| 11.75 |
| 11.64 |
| 11.79 |
| 11.55 |
| 11.68 |
| 11.81 |
| 11.33 |
| CaF2 |
| C 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| M 21.00 |
| 21.00 |
| 21.00 |
| 21.04 |
| 21.10 |
| 21.05 |
| 21.05 |
| 21.05 |
| 21.05 |
| 21.10 |
| W 17.11 |
| 17.00 |
| 16.63 |
| 17.09 |
| 16.93 |
| 17.15 |
| 16.79 |
| 16.99 |
| 17.17 |
| 16.46 |
| MgF2 |
| C 4 4 4 4 4 4 4 2 2 |
| M 4.42 |
| 4.42 |
| 4.42 |
| 4.43 |
| 4.45 |
| 4.44 |
| 2.22 |
| 2.22 |
| 2.22 |
| -- |
| W 2.88 |
| 2.86 |
| 2.80 |
| 2.87 |
| 2.85 |
| 2.88 |
| 1.41 |
| 1.43 |
| 1.44 |
| BaO C -- -- -- -- -- -- 2 -- -- 4 |
| M 2.22 4.44 |
| W 3.48 6.81 |
| SrO C -- -- -- -- -- -- -- 2 |
| M 2.22 |
| W 2.38 |
| CaO C -- -- -- -- -- -- -- -- 2 -- |
| M 2.22 |
| W 1.30 |
| MgO -- -- -- -- -- -- -- -- -- -- |
| KF C -- -- 12 2 2 2 2 2 2 2 |
| M -- -- 13.27 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.22 |
| 2.22 |
| W -- -- 7.82 |
| 1.34 |
| 1.33 |
| 1.34 |
| 1.32 |
| 1.33 |
| 1.35 |
| 1.29 |
| NaF C 12 12 -- 10 10 10 10 10 10 10 |
| M 13.27 |
| 13.27 |
| -- 11.09 |
| 11.12 |
| 11.09 |
| 11.09 |
| 11.09 |
| 11.09 |
| 11.12 |
| W 5.82 |
| 5.78 |
| -- 9.84 |
| 4.80 |
| 4.86 |
| 4.76 |
| 4.81 |
| 4.87 |
| 4.66 |
| LiF -- -- -- -- -- -- -- -- -- -- |
| 1/2K2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Na2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Li2 O |
| -- -- -- -- -- -- -- -- -- -- |
| MoO3 |
| C -- 0.4 0.4 -- -- 0.4 0.4 0.4 0.4 -- |
| M -- 0.45 |
| 0.45 |
| -- -- 0.44 |
| 0.44 |
| 0.44 |
| 0.94 |
| -- |
| W -- 0.66 |
| 0.65 |
| -- -- 0.67 |
| 0.65 |
| 0.66 |
| 0.67 |
| -- |
| TiO2 |
| C 0.4 -- -- -- -- -- -- -- -- -- |
| M 0.45 |
| -- -- -- -- -- -- -- -- -- |
| W 0.37 |
| -- -- -- -- -- -- -- -- -- |
| 1/2Nb2 O5 |
| C -- -- -- 0.4 0.4 -- -- -- -- 0.4 |
| M -- -- -- 0.22 |
| 0.22 0.22 |
| W -- -- -- 0.61 |
| 0.61 |
| -- -- -- -- 0.59 |
| NdF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 |
| M 0.66 |
| 0.66 |
| 0.66 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| W 2.33 |
| 2.31 |
| 2.26 |
| 2.33 |
| 2.31 |
| 2.34 |
| 2.29 |
| 2.31 |
| 2.34 |
| 2.24 |
| LT 610 613 627 615 641 605 631 624 619 662 |
| n2 0.65 |
| 0.67 |
| 0.63 |
| 0.64 |
| 0.68 |
| 0.65 |
| 0.67 |
| 0.67 |
| 0.66 |
| 0.68 |
| No. 51 52 53 54 55 56 57 58 59 60 |
| __________________________________________________________________________ |
| 1/2P2 O5 |
| C 18 18 18 18 18 18 18 18 18 18 |
| M 10.00 |
| 10.00 |
| 10.00 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| 9.96 |
| W 14.51 |
| 14.83 |
| 14.94 |
| 14.94 |
| 15.01 |
| 15.45 |
| 14.15 |
| 14.16 |
| 14.29 |
| 14.12 |
| AlF3 |
| C 28.48 |
| 28.48 |
| 28.48 |
| 32.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| 32.98 |
| M 31.66 |
| 31.66 |
| 31.66 |
| 36.48 |
| 36.48 |
| 36.48 |
| 36.48 |
| 36.48 |
| 36.48 |
| 36.48 |
| W 27.18 |
| 27.77 |
| 27.98 |
| 32.43 |
| 32.55 |
| 33.49 |
| 30.70 |
| 30.70 |
| 30.99 |
| 30.10 |
| YF3 |
| C 2 2 2 2 2 2 2 2 2 2 |
| M 2.23 |
| 2.23 |
| 2.23 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| 2.21 |
| W 3.31 |
| 3.39 |
| 3.41 |
| 3.41 |
| 3.43 |
| 3.53 |
| 3.24 |
| 3.23 |
| 3.27 |
| 3.22 |
| LaF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Al2 O3 |
| C 0.5 0.5 0.5 -- -- -- -- -- -- -- |
| M 0.28 |
| 0.28 |
| 0.28 |
| W 0.29 |
| 0.30 |
| 0.30 |
| -- -- -- -- -- -- -- |
| 1/2Y2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2La2 O3 |
| -- -- -- -- -- -- -- -- -- -- |
| BaF2 |
| C 6.33 |
| 6.33 |
| 6.33 |
| -- 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| 6.33 |
| M 7.04 |
| 7.04 |
| 7.04 |
| -- 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| 7.00 |
| W 12.06 |
| 12.89 |
| 12.98 |
| -- 13.04 |
| 13.42 |
| 12.31 |
| 12.30 |
| 12.42 |
| 12.26 |
| SrF2 |
| C 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| -- 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| 8.11 |
| M 9.00 |
| 9.00 |
| 9.00 |
| 8.97 |
| -- 8.97 |
| 8.97 |
| 5.65 |
| 8.97 |
| 8.97 |
| W 11.57 |
| 11.83 |
| 11.92 |
| 11.92 |
| -- 12.32 |
| 11.30 |
| 11.29 |
| 11.40 |
| 11.26 |
| CaF2 |
| C 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| 18.98 |
| -- 18.98 |
| 18.98 |
| 14.98 |
| 12.98 |
| M 21.05 |
| 21.05 |
| 21.05 |
| 21.00 |
| 21.00 |
| -- 21.00 |
| 21.00 |
| 16.58 |
| 14.36 |
| W 16.84 |
| 17.20 |
| 17.33 |
| 17.33 |
| 17.33 |
| -- 16.43 |
| 16.42 |
| 16.58 |
| 16.38 |
| MgF2 |
| -- |
| -- -- -- -- -- -- -- -- -- |
| BaO C -- -- -- 6.33 |
| -- -- 2 -- -- -- |
| M -- -- -- 7.00 |
| -- -- 2.21 |
| -- -- -- |
| W -- -- -- 11.35 |
| -- -- 3.40 |
| -- -- -- |
| SrO C 4 -- -- -- 8.11 |
| -- -- 3 -- -- |
| M 4.44 |
| -- -- -- 8.97 |
| -- -- 3.32 |
| -- -- |
| W 9.71 |
| -- -- -- 9.58 |
| -- -- 3.44 |
| -- -- |
| CaO C -- 4 -- -- -- 18.98 |
| -- -- 4 6 |
| M -- 4.44 |
| -- -- -- 21.00 |
| -- -- 4.42 |
| 6.64 |
| W -- 2.60 |
| -- -- -- 12.87 |
| -- -- 2.51 |
| 3.72 |
| MgO C -- -- 4 -- -- -- -- -- -- -- |
| M -- -- 4.44 |
| -- -- -- -- -- -- -- |
| W -- -- 1.89 |
| -- -- -- -- -- -- -- |
| KG C 2 2 -- -- -- -- -- -- -- |
| M 2.22 |
| 2.22 |
| 2.22 |
| -- -- -- -- -- -- -- |
| W 1.32 |
| 1.35 |
| 1.36 |
| -- -- -- -- -- -- -- |
| NaF C 10 10 10 12 12 12 12 12 12 12 |
| M 11.12 |
| 11.12 |
| 11.12 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| 13.27 |
| LiF W 4.77 |
| 4.88 |
| 4.91 |
| 5.89 |
| 5.92 |
| 6.09 |
| 5.59 |
| 5.58 |
| 5.64 |
| 5.57 |
| 1/2K2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Na2 O |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Li2 O |
| -- -- -- -- -- -- -- -- -- -- |
| MoO3 |
| C -- -- -- -- -- -- 0.4 0.4 0.4 0.4 |
| M -- -- -- -- -- -- 0.44 |
| 0.44 |
| 0.44 |
| 0.44 |
| W -- -- -- -- -- -- 0.64 |
| 0.64 |
| 0.64 |
| 0.64 |
| TiO2 |
| C -- -- -- 0.4 0.4 0.4 -- -- -- -- |
| M -- -- -- 0.44 |
| 0.44 |
| 0.44 |
| -- -- -- -- |
| W -- -- -- 0.37 |
| 0.38 |
| 0.39 |
| -- -- -- -- |
| 1/2Nb2 O5 |
| C 0.4 0.4 0.4 -- -- -- -- -- -- -- |
| M 0.22 |
| 0.22 |
| 0.22 |
| -- -- -- -- -- -- -- |
| W 0.60 |
| 0.62 |
| 0.62 |
| -- -- -- -- -- -- -- |
| NdF3 |
| -- -- -- -- -- -- -- -- -- -- |
| 1/2Nd2 O3 |
| C 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 |
| M 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| 0.67 |
| W 2.27 |
| 2.34 |
| 2.36 |
| 2.36 |
| 2.37 |
| 2.44 |
| 2.24 |
| 2.24 |
| 2.26 |
| 2.23 |
| LT 643 640 637 722 750 832 670 710 712 723 |
| n2 0.68 |
| 0.66 |
| 0.64 |
| 0.71 |
| 0.72 |
| 0.74 |
| 0.68 |
| 0.68 |
| 0.69 |
| 0.70 |
| __________________________________________________________________________ |
| C: Cationic % |
| M: Mol % |
| W: Weight % |
For the preparation of the fluorophosphate-base laser glasses of the present invention as shown in the Table above the components are sufficiently mixed, melted, stirred and refined over a period of about 2 to 10 hrs. at about 1,000°C in a ceramic crucible or a fire-resistant metal crucible, and the resulting melt was molded. As a result, the glass could be obtained as a large-sized mass without devitrification in spite of the fact that the amount of the glass forming oxides is very small.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Izumitani, Tetsuro, Tsutome, Michitaka
| Patent | Priority | Assignee | Title |
| 10393887, | Jul 19 2015 | AFO RESEARCH, INC | Fluorine resistant, radiation resistant, and radiation detection glass systems |
| 4213788, | Mar 30 1978 | Fuji Photo Film Co., Ltd. | Fluoride and phosphate containing optical glass |
| 4217382, | Jun 20 1978 | Hoya Corporation | Edge-cladding glass of disc laser glass |
| 4225459, | Apr 22 1977 | JENAer Glaswerk Schott & Gen. | Glasses having a low non-linear refractive index for laser applications |
| 4328318, | Mar 28 1979 | ETABLISSEMENT PUBLIC DIT: AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE ANVAR | Glasses containing fluorine, their preparation and their application |
| 4343638, | Feb 04 1980 | Nippon Telegraph & Telephone Corporation | Method for manufacturing glass fibers from an infrared ray-transmitting glass fiber material |
| 4346176, | Feb 13 1980 | Nippon Telegraph & Telephone Corporation | Glass for optical fiber |
| 4427784, | Apr 24 1979 | Nippon Kogaku K.K. | Fluophosphate optical glass |
| 4806138, | Jan 24 1987 | HOYA CORPORATION, 7-5, NAKA-OCHIAI 2-CHOME, SHINJUKU-KU, TOKYO, JAPAN, A CORP OF JAPAN | Method for melting fluorophosphate glass |
| 4929387, | Aug 31 1988 | SCHOTT GLASS TECHNOLOGIES, INC , DURYEA, PA 18642 | Phosphate glass useful in high power lasers |
| 5032315, | Aug 31 1988 | Schott Glass Technologies, Inc. | Phosphate glass useful in high power lasers |
| 5070506, | Sep 29 1989 | Hoya Corporation | Halide laser glass and laser device utilizing the glass |
| 5635109, | Oct 31 1994 | Sumita Optical Glass, Inc. | Tb- or Eu-containing fluorophosphate fluorescent glass |
| 6304711, | Jul 17 1996 | UNIVERSITY OF SOUTHAMPTON; Leeds University | Optical glass, optical waveguide amplifier and optical waveguide laser |
| 6429162, | Sep 05 1997 | Corning Inc. | Glass for high and flat gain 1.55 μm optical amplifiers |
| 6940216, | Jun 22 2001 | Koninklijke Philips Electronics N V | Gas discharge lamp for dielectrically impeded discharges comprising a blue phosphor |
| 7196027, | Jun 05 2000 | Kabushiki Kaisha Ohara | Optical glass suffering little change in refractive index by radiation of light |
| 7595272, | Mar 30 2005 | Hoya Corporation | Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof |
| 7608551, | Jul 05 2005 | AFO RESEARCH, INC | Bismuth containing fluorophosphate glass and method for making thereof |
| 7637124, | Jul 05 2005 | AFO RESEARCH, INC | Bismuth containing fluorophosphate glass and method for making thereof |
| 7838450, | Oct 10 2006 | Ohara Inc. | Optical glass |
| 7989376, | Jun 26 2001 | AFO RESEARCH, INC | Fluorophosphate glass and method for making thereof |
| 8158541, | Sep 14 2005 | Hoya Corporation | Optical glass, precision press-molding preform and optical element |
| 8261579, | Sep 14 2005 | Hoya Corporation | Optical glass, precision press-molding preform and optical element |
| 8333089, | Jun 26 2001 | Fluorophosphate glass and method of making thereof | |
| 8334229, | Oct 31 2008 | Optical components for use in high energy environment with improved optical characteristics | |
| 8354352, | Mar 06 2007 | Hoya Corporation | Optical glass, preform for press forming, optical element, and processes for producing these |
| 8356493, | Jun 26 2001 | AFO, INC ; AFO RESEARCH, INC | Fluorophosphate glass and method of making thereof |
| 8361914, | Oct 31 2008 | AFO, INC ; AFO RESEARCH, INC | Optical components for use in high energy environment with improved optical characteristics |
| 8633121, | Aug 26 2009 | Hoya Corporation | Fluorophosphate glass, glass material for press molding, optical element blank, optical element, processes for production of same, and process for production of glass moldings |
| 8637415, | Mar 28 2008 | Hoya Corporation | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and methods of manufacturing the same |
| 8642490, | Mar 28 2008 | Hoya Corporation | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and method of manufacturing the same |
| Patent | Priority | Assignee | Title |
| 3549554, | |||
| 3615764, | |||
| 3656976, | |||
| 3743492, | |||
| 3846142, | |||
| FR2,304,582, | |||
| GB1,405,717, | |||
| GB1,406,134, | |||
| GB606,509, | |||
| GB909,679, | |||
| SU447,379, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 27 1977 | Hoya Corporation | (assignment on the face of the patent) | / |
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